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Synonyms of radical in English:


  • 1 radical reform
    thoroughgoing, thorough, complete, total, comprehensive, exhaustive, sweeping, far-reaching, wide-ranging, extensive, across the board, profound, major, stringent, rigorous
    [Antonyms] superficial
  • 2 radical differences between the two theories
    fundamental, basic, essential, quintessential;
    structural, deep-seated, intrinsic, organic, constitutive
    [Antonyms] minor
  • 3 a radical political movement
    revolutionary, progressive, reformist, revisionist, progressivist;
    extreme, extremist, fanatical, militant, diehard, hard-core
    [Antonyms] reactionary, moderate, conservative
  • noun

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  • 1 the arrested man was a radical
    revolutionary, progressive, reformer, revisionist;
    informal ultra
    [Antonyms] reactionary, moderate, conservative
  • Quote

    The most radical revolutionary will become a conservative on the day after the revolution.
    Hannah Arendt, German-American political philosopher

    Definition of radical in:
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